[x] Welcome at THunting.com!

A fun place to talk about Metal Detecting, Treasure Hunting & Prospecting. Here you can share finds and experience with thousands of members from all over the world

Join us and Register Now - Its FREE & EASY

THunting.com
Treasure Hunting & Metal Detecting Community
   
Advanced Search
*
Welcome, Guest! Please login or register HERE - It is FREE and easy.
Only registered users can post and view images on our message boards.
Did you miss your activation email?

Login with email, password and session length
Or Login Using Social Network Account
2
News:
Pages:  1 2 3 4 5 6 7 8 9 10   Go Down
Print
Share this topic on FacebookShare this topic on Del.icio.usShare this topic on DiggShare this topic on RedditShare this topic on Twitter
Tags:
0 Members and 1 Guest are viewing this topic.
Offline leonardo
Pull Tab
*

Join Date: Mar, 2015
Thank you5

Activity
0%

Brazil
Posts: 8
Referrals: 0

50.00 Gold
View Inventory
Windows XP
Windows XP
Chrome 42.0.2311.90
Chrome 42.0.2311.90

Awards
« Reply #40 on: April 29, 2015, 09:59:27 pm »
Go Up Go Down

good results with admiral, I think coil is not right turns,detecting very close only...
a forum member has already set up?

Posted on: April 29, 2015, 09:56:03 pm
my English is bad'  i am Brazilian!portuguese language


Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg295931.html#msg295931




Logged
Offline bernte_oneTopic starter
Bronze Member
*

shared wisdom is doubled wisdom
Join Date: May, 2011
Thank you68

Activity
2%

Germany
Posts: 178
Referrals: 0

955.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Mozilla compatible
Mozilla compatible

Awards

GUESS WHICH
« Reply #41 on: April 30, 2015, 03:59:26 am »
Go Up Go Down

try to set rx coil so that you get an induced voltage lower than 10mV
fix the coil at this Point, check for right behaviour of coil, function of ground Balance (test with a pieces of ferrite)
and Disc. 100g hammer and a coin.

if this does not work
flip one part of the coil the tx OR the rx side - or just Change one Connection of connector from tx   OR rx, winding direction of tx and rx should be same direction

if this does not work too
try another cap value maybe at rx stage on pcb, to get better ratio of frequency difference between tx and rx

good luck

Posted on: April 30, 2015, 03:56:44 am
another Thing: your test coil Looks bad, loose winding  - fix them tightly and bring tx and rx coil in symetrical shape

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg295945.html#msg295945


my machines at work http://mueller-meteoriten.de


Logged

I CAN MAKE PCBs FOR YOUR DIY PROJECT  offer only within EU

Offline golddustcarl
Silver Member
*

Mood:Happy
Happy

Join Date: May, 2014
Thank you153

Activity
0%
Male
United States
Posts: 1321
Referrals: 0

7332.00 Gold
View Inventory
Linux
Linux
Chrome 28.0.1500.94
Chrome 28.0.1500.94

Awards

Tesoro Vaquero, VibraProbe 580, bounty hunter, Garrett Master Hunter ADSIII, DIY µC PI,  Coinmaster 6000/Di Series2
« Reply #42 on: April 30, 2015, 01:46:45 pm »
Go Up Go Down

Bernte_one is right. Get that coil tightly wrapped, then get it nulled, so as little as possible signal is in the secondary. Then take a coin and place it on the gap so as much signal as possible is seen on an oscilloscope. From there, remove rx cap from the board, hook a capacitor sub box across the coil and substitute different  caps until the signal cannot get any bigger. Put a cap on the rx board with that value. If you don't have a sub box, use individual capacitors. This is where the coil is most sensitive.

Dusty Carl

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg295960.html#msg295960


A bad day at gold prospecting or metal detecting is better than a good day at work.


Logged

GOLDDUST CARL

Offline xavier
Platin Member
*

From a rainy Brussels
Join Date: May, 2009
Thank you149

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory
Linux
Linux
Safari 4.0
Safari 4.0

Awards
« Reply #43 on: May 07, 2015, 09:34:09 am »
Go Up Go Down

Quote:Posted by leonardo
good results with admiral, I think coil is not right turns,detecting very close only...
a forum member has already set up?

Posted on: April 29, 2015, 09:56:03 pm
my English is bad'  i am Brazilian!portuguese language


Nothing wrong with the specs that you were given,  but you handiwork.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg296280.html#msg296280


Xavier


Logged

So many questions so little time

Offline leonardo
Pull Tab
*

Join Date: Mar, 2015
Thank you5

Activity
0%

Brazil
Posts: 8
Referrals: 0

50.00 Gold
View Inventory
Windows XP
Windows XP
Chrome 42.0.2311.90
Chrome 42.0.2311.90

Awards
« Reply #44 on: May 14, 2015, 07:24:51 am »
Go Up Go Down

admiral ok

Posted on: May 14, 2015, 07:23:04 am
md admiral

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg296780.html#msg296780



There are 3 attachment(s) in this post which you can not view or download

Please register for viewing them.

j.JPG
k.JPG
m.JPG


Logged
Offline xavier
Platin Member
*

From a rainy Brussels
Join Date: May, 2009
Thank you149

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Chrome 42.0.2311.135
Chrome 42.0.2311.135

Awards
« Reply #45 on: May 14, 2015, 08:46:20 am »
Go Up Go Down

Good have you found thing with it yet?

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg296795.html#msg296795


Xavier


Logged

So many questions so little time

Offline bernte_oneTopic starter
Bronze Member
*

shared wisdom is doubled wisdom
Join Date: May, 2011
Thank you68

Activity
2%

Germany
Posts: 178
Referrals: 0

955.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Mozilla compatible
Mozilla compatible

Awards

GUESS WHICH
« Reply #46 on: May 18, 2015, 01:31:01 am »
Go Up Go Down

hello Leonardo,

Looks good, have you tested, can you make Video? Clapp

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg297021.html#msg297021


my machines at work http://mueller-meteoriten.de


Logged

I CAN MAKE PCBs FOR YOUR DIY PROJECT  offer only within EU

Offline xavier
Platin Member
*

From a rainy Brussels
Join Date: May, 2009
Thank you149

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Chrome 42.0.2311.152
Chrome 42.0.2311.152

Awards
« Reply #47 on: May 18, 2015, 04:19:01 am »
Go Up Go Down

Quote:Posted by bernte_one
hello Leonardo,

Looks good, have you tested, can you make Video? Clapp

Unfortunately a lot of new members come here get the build done, then you don't hear from them any more. I hope that it won't be the case here.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg297022.html#msg297022


Xavier


Logged

So many questions so little time

Offline bernte_oneTopic starter
Bronze Member
*

shared wisdom is doubled wisdom
Join Date: May, 2011
Thank you68

Activity
2%

Germany
Posts: 178
Referrals: 0

955.00 Gold
View Inventory
Windows Vista/Server 2008
Windows Vista/Server 2008
Firefox 38.0
Firefox 38.0

Awards

GUESS WHICH
« Reply #48 on: May 18, 2015, 09:43:08 am »
Go Up Go Down

hello xavier, tried to answer your pm  but your inbox is full
i have overworked dbp layout a bit and want to show it

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg297025.html#msg297025


my machines at work http://mueller-meteoriten.de


Logged

I CAN MAKE PCBs FOR YOUR DIY PROJECT  offer only within EU

Offline xavier
Platin Member
*

From a rainy Brussels
Join Date: May, 2009
Thank you149

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Chrome 42.0.2311.152
Chrome 42.0.2311.152

Awards
« Reply #49 on: May 18, 2015, 10:04:58 am »
Go Up Go Down

No my in box is not full mate, just cleaned it a few days ago.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,57585.msg297027.html#msg297027


Xavier


Logged

So many questions so little time

Print
Pages:  1 2 3 4 5 6 7 8 9 10   Go Up
Jump to:  

Powered by SMF 1.1.19 | SMF © 2005, Simple Machines | Sitemap
Copyright THunting.com